I think it is not posible to connect LOR devices and J1Sys devices to same switch. As far as i know the RJ45 cable configuration of LOR devices is quite different from other devices, that would cause a short circuit if you try to connect LOR boards to switch.
I know it because i made the same question couple of weeks ago in chat and Smartalec kindly explained me that. Nevertheless mayve there are others opinions about it.
Cheers,